Engino  ECO Helicopters Construction Set Starter set from Engino's Ecobuilds innovative construction series will build three helicopter models Contains 119 parts Printed instructions are included with these fun; easy to assemble models xcellent addition to a home-school curriculum Another fun; educational product from Elenco; the company that brings you Snap Circuits Starter set from Engino's Ecobuilds innovative construction series will build three helicopter models Contains 119 parts Printed instructions are included with these fun, easy to assemble models Excellent addition to a home-school curriculum Another fun, educational product from Elenco, the company that brings you Snap Circuits